6666115 has 12 divisors (see below), whose sum is σ = 8158464. Its totient is φ = 5228816.

The previous prime is 6666097. The next prime is 6666133. The reversal of 6666115 is 5116666.

It is an interprime number because it is at equal distance from previous prime (6666097) and next prime (6666133).

It is not a de Polignac number, because 6666115 - 2⁷ = 6665987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17214 + ... + 17596.

It is an arithmetic number, because the mean of its divisors is an integer number (679872).

Almost surely, 2^6666115 is an apocalyptic number.

6666115 is a deficient number, since it is larger than the sum of its proper divisors (1492349).

6666115 is an equidigital number, since it uses as much as digits as its factorization.

6666115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 447 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 6666115 is about 2581.8820654708. The cubic root of 6666115 is about 188.2020142509.

The spelling of 6666115 in words is "six million, six hundred sixty-six thousand, one hundred fifteen".